19601865

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:203

約数の個数: 64

約数和(自身を含む): 37324800

約数和(自身を除く): 17722935

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 59, 69, 107, 115, 135, 177, 207, 295, 321, 345, 531, 535, 621, 885, 963, 1035, 1357, 1593, 1605, 2461, 2655, 2889, 3105, 4071, 4815, 6313, 6785, 7383, 7965, 12213, 12305, 14445, 18939, 20355, 22149, 31565, 36639, 36915, 56817, 61065, 66447, 94695, 110745, 145199, 170451, 183195, 284085, 332235, 435597, 725995, 852255, 1306791, 2177985, 3920373, 6533955, 19601865]

約数ペア:

[(1, 19601865), (3, 6533955), (5, 3920373), (9, 2177985), (15, 1306791), (23, 852255), (27, 725995), (45, 435597), (59, 332235), (69, 284085), (107, 183195), (115, 170451), (135, 145199), (177, 110745), (207, 94695), (295, 66447), (321, 61065), (345, 56817), (531, 36915), (535, 36639), (621, 31565), (885, 22149), (963, 20355), (1035, 18939), (1357, 14445), (1593, 12305), (1605, 12213), (2461, 7965), (2655, 7383), (2889, 6785), (3105, 6313), (4071, 4815)]